Add 30/9 and 45/4
1st number: 3 3/9, 2nd number: 11 1/4
30/9 + 45/4 is 175/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 4 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
30/9 = 30 × 4/9 × 4 = 120/36 - Likewise, for the 2nd fraction, since 4 × 9 = 36,
45/4 = 45 × 9/4 × 9 = 405/36 - Add the two like fractions:
120/36 + 405/36 = 120 + 405/36 = 525/36 - 525/36 simplified gives 175/12
- So, 30/9 + 45/4 = 175/12
In mixed form: 147/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/9+45/4 30/9+90/4 30/18+45/4 30/9+45/8 90/9+45/4 30/27+45/4 30/9+45/12 30/45+45/4 30/9+45/20 30/63+45/4 30/9+45/28